J. Opstvedt

Heat-induced changes in sulfhydryl groups and disulfide bonds in fish protein and their effect on protein and amino acid digestibility in rainbow trout (Salmo gairdneri)

J. Opstvedt, Ruth Miller, Ronald W. Hardy et al. · Journal of Agricultural and Food Chemistry · 1984 · 167 citations

Food Chemistry, Rainbow Trout, Protein Chemistry +15

Efficiency of feed utilization in Atlantic salmon (Salmo salar L.) fed diets with increasing substitution of fish meal with vegetable proteins

J. Opstvedt, Anders Aksnes, Britt Hope et al. · Aquaculture · 2003 · 133 citations

Nutrition, Engineering, Animal Nutrition +8

Effect on protein digestibility of different processing conditions in the production of fish meal and fish feed

J. Opstvedt, Einar Nygård, Tor Andreas Samuelsen et al. · Journal of the Science of Food and Agriculture · 2003 · 81 citations

Nutrition, Fish Meal, Food Composition +13

Availability of Selenium in Fish Meal in Comparison with Soybean Meal, Corn Gluten Meal and Selenomethionine Relative to Selenium in Sodiumselenite for Restoring Glutathione Peroxidase Activity in Selenium-Depleted Chicks

Bjørn O. Gabrielsen, J. Opstvedt · Journal of Nutrition · 1980 · 76 citations

Nutrition, Nutrient Bioavailability, Dietary Exposure +8

Content of digestible energy in fish feed ingredients determined by the ingredient-substitution method

Anders Aksnes, J. Opstvedt · Aquaculture · 1998 · 76 citations

Nutrition, Ingredient-substitution Method, Food Composition +9